充填回收房式煤柱围岩变形控制机理  

Mechanism of Deformation Control of Surrounding Rock in Recovering Room Mining Coal Pillars by Solid Backfilling Mining

作　　者：陈靓[1] 顾伟[1] CHEN Liang GU Wei(China University of Mining and Technology, Xuzhou 221116, China)

机构地区：[1]中国矿业大学,江苏徐州221116

出　　处：《煤炭技术》2017年第5期109-111,共3页Coal Technology

基　　金：国家自然科学基金资助项目(51304199);煤炭资源与安全开采国家重点实验室自主课题项目(SKLCRSM13X08);中央高校基本科研业务费专项资金项目(2014XT01)

摘　　要：分析垮落法和充填法回收房式煤柱围岩变形特征,得出采用充填法回收煤柱可以更好地控制围岩变形。分析影响回收煤柱围岩稳定性的6个主要因素,得出采空区充采体积比、充填物料抗压特性、工作面液压支架支护强度是可控关键因素,通过优化设备参数、提高采充工艺水平、对充填物料进行初始压实、选择抗压特性高的充填物料、增加液压支架支护强度等方式进行煤柱围岩稳定性控制。The deformation of surrounding rock in recovering room mining coal pillars by solid backfilling and caving method mining is analyzed. It is concluded that the recovery of coal pillar by backfilling method can better control the deformation of surrounding rock. Six main factors influencing the stability of surrounding rock are analyzed. It is concluded that the volume ratio of backfilling and extraction of goal, the compressive strength of backfilling hydraulic support of the working face are the key factors. It materials and the support strength of the can control the stability of surrounding rock of coal pillar by optimizing equipment parameters, improving the level of mining and backfilling process, the initial compaction of backfilling materials, selecting of high compression characteristics backfilling materials and increasing the strength of hydraulic support.

关 键 词：房式开采 垮落法 充填法 煤柱稳定性 

分 类 号：TD313.1[矿业工程—矿井建设] TD823.5